Abstract: In order to reduce the environmental pollution problems caused by the abuse of chemical fertilizers and advocate the application of organic fertilizers to improve soil fertility and plant quality, this experiment took non-heading Chinese cabbage（Brassica campestris ssp. chinensis Makino）variety Suzhou Qing as the test variety, and set up 7 fertilization treatments, namely no organic fertilizer （CK）, Shenchu's water-soluble bio-organic fertilizer （Y1）, Zhubang's bio-organic fertilizer （Y2）, Seavinner's family organic garden bio-organic fertilizer （Y3）, Junlilongda's general-purpose organic fertilizer （Y4）, Yuanlv's earthworm organic fertilizer （Y5）, Yuanlv's organic fertilizer （Y6）, and Stanley̕s large elemental water soluble fertilizer （H, chemical fertilizer）, to study their effects on the yield, quality and soil nutrients of non-heading Chinese cabbage at the nitrogen （pure N） amount of all fertilization treatments in 200 mg/kg（soil）. The results showed that organic fertilizer could significantly（P<0.05） increase soil fertility, reduce soil bulk density, and play a role in improving the quality of non-heading cabbage. Y1, Y2 and Y3 organic fertilizer treatments had the best effect on soil bulk density reduction, which were reduced by 5.0%, 5.1% and 6.6% respectively compared with H treatment; the content of soil organic matter in six organic fertilizer treatments was increased by 32.6%, 17.9%, 47.4%, 152.6%, 43.2% and 76.8% respectively compared with the H treatment; Y2, Y3 and Y5 organic fertilizer treatments had the best comprehensive effect on the quality of non-heading Chinese cabbage. However, under Y1 treatment, due to the slow growth of non-heading Chinese cabbage, all indexes could not be determined.

Key words: organic fertilizer, non-heading Chinese cabbage（Brassica campestris ssp. chinensis Makino）, plant nutrient, nutritional quality, soil fertility